Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu cac » hieu luc, hieu van, vien cac
nhan luc » nang luc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
luc van » luoc van, luu van, duc van
van anh » van thanh, tuan anh, van minh
anh ve » hanh ve, anh va, anh viet
ve cua » le cua, de cua, te cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. ((hieu cac) OR (hieu va)) nhan luc van anh ve cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. ((hieu cac) OR (hieu va)) nhan luc van anh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu cac) OR (hieu va)) nhan luc van anh ve cua triet*.